<?php

/**
 * This is the model class for table "users".
 *
 * The followings are the available columns in table 'users':
 * @property string $username
 * @property string $password
 * @property string $date_created
 * @property string $date_last_visit
 * @property string $group
 *
 * The followings are the available model relations:
 * @property Content[] $contents
 * @property Group $group0
 */
class Users extends CActiveRecord {

    /**
     * Returns the static model of the specified AR class.
     * @param string $className active record class name.
     * @return Users the static model class
     */
    public static function model($className = __CLASS__) {
        return parent::model($className);
    }

    /**
     * @return string the associated database table name
     */
    public function tableName() {
        return 'users';
    }

    /**
     * @return array validation rules for model attributes.
     */
    public function rules() {
        // NOTE: you should only define rules for those attributes that
        // will receive user inputs.
        return array(
            array('username', 'required'),
            array('username, group', 'length', 'max' => 45),
            array('username', 'unique'),
            array('password', 'length', 'max' => 128),
            array('password', 'required'),
            // The following rule is used by search().
            // Please remove those attributes that should not be searched.
            array('username, password, date_created, date_last_visit, group', 'safe', 'on' => 'search'),
        );
    }

    /**
     * @return array relational rules.
     */
    public function relations() {
        // NOTE: you may need to adjust the relation name and the related
        // class name for the relations automatically generated below.
        return array(
            'contents' => array(self::HAS_MANY, 'Content', 'author'),
            'group0' => array(self::BELONGS_TO, 'Group', 'group'),
        );
    }

    /**
     * @return array customized attribute labels (name=>label)
     */
    public function attributeLabels() {
        return array(
            'username' => 'Username',
            'password' => 'Password',
            'date_created' => 'Date Created',
            'date_last_visit' => 'Date Last Visit',
            'group' => 'Group',
        );
    }

    /**
     * Retrieves a list of models based on the current search/filter conditions.
     * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
     */
    public function search() {
        // Warning: Please modify the following code to remove attributes that
        // should not be searched.

        $criteria = new CDbCriteria;

        $criteria->compare('username', $this->username, true);
        $criteria->compare('password', $this->password, true);
        $criteria->compare('date_created', $this->date_created, true);
        $criteria->compare('date_last_visit', $this->date_last_visit, true);
        $criteria->compare('group', $this->group, true);

        return new CActiveDataProvider($this, array(
                    'criteria' => $criteria,
                ));
    }

    public function beforeSave() {
        if ($this->isNewRecord) {
            $this->date_created = new CDbExpression('NOW()');
            $this->password = new CDbExpression("SHA2('" . $this->password . "',512)");
        }
        if ($this->group == null)
            $this->group = 'member';

        $this->date_last_visit = new CDbExpression('NOW()');

        return parent::beforeSave();
    }

}